<template>
    <el-row class="login-container">
        <el-col :lg="16" :md="12" class="left">
            <div>
                <div>欢迎光临</div>
                <div style="display: flex; align-items: center;">
                    <img :src="logoUrl" alt="" width="100px" style="background: white; margin-right: 10px;">
                    <div>
                        <div v-html="formattedSystemName"></div>
                    </div>
                </div>
            </div>
        </el-col>
        <el-col :lg="8" :md="12" class="right">
            <h2 class="title">欢迎回来</h2>
            <div>
                <span class="line"></span>
                <span>账号密码登录</span>
                <span class="line"></span>
            </div>
            <el-form ref="formRef" :rules="rules" :model="form" class="w-[250px]">
                <el-form-item prop="telephone">
                    <el-input v-model="form.telephone" placeholder="请输入手机号">
                        <template #prefix>
                            <el-icon><user /></el-icon>
                        </template>
                    </el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input type="password" v-model="form.password" placeholder="请输入密码" show-password>
                        <template #prefix>
                            <el-icon><lock /></el-icon>
                        </template>
                    </el-input>
                </el-form-item>
                <el-form-item prop="role" style="width: 300px">
                    <el-radio-group v-model="form.role">
                        <el-radio label="管理员" value=1 />
                        <el-radio label="培训负责人" value=2 />
                        <el-radio label="培训讲师" value=3 />
                    </el-radio-group>
                </el-form-item>
                <el-form-item>
                    <el-button round color="#626aef" class="w-[250px]" type="primary" @click="onSubmit" :loading="loading">登 录</el-button>
                </el-form-item>
            </el-form>
        </el-col>
    </el-row>
</template>

<script setup>
import { ref,reactive,onMounted,onBeforeUnmount,computed } from 'vue'
import { toast } from '~/composables/util'
import { useRouter } from "vue-router"
import { useStore } from "vuex"

const router = useRouter()
const store = useStore()
const loading = ref(false)

import defaultLogo from '~/assets/logo.png'

const logoUrl = computed(() => {
    const configUrl = store.state.config?.url
    return configUrl && configUrl !== '' ? configUrl : defaultLogo
})

const systemName = computed(() => {
    const configName = store.state.config?.topName
    return configName && configName !== '' ? configName : "救护消防应急救援中心微课系统"
})

const formattedSystemName = computed(() => {
    const name = systemName.value
    if (!name) return ''

    const chunkSize = 12
    const chunks = []

    for (let i = 0; i < name.length; i += chunkSize) {
        chunks.push(name.substring(i, i + chunkSize))
    }

    return chunks.join('<br>')
})
// do not use same name with ref
const form = reactive({
  telephone: "",
  password: "",
  role: "",
})

const rules = {
    telephone: [
        { required: true, message: '请输入手机号', trigger: 'blur' },
    ],
    password:[
        {
            required: true,
            message: '密码不能为空',
            trigger: 'blur'
        },
    ],
    role:[
        {
            required: true,
            message: '角色不能为空',
            trigger: 'blur'
        },
    ]
}

const formRef = ref(null)

const onSubmit = () => {
    formRef.value.validate((valid)=>{
        if(!valid){
            return false
        }
        loading.value = true
        store.dispatch("login",form).then(res=>{
            if(res.data.code === "200") {
                toast("登录成功")
                // 跳转到后台首页
                router.push("/")
            } else if (res.data.code === "600") {
                toast(res.data.msg, 'error')
            } else if (res.data.code === "401") {
                toast(res.data.msg, 'warning')
            }
        }).finally(()=>{
            loading.value = false
        })
    })
}

// 监听回车事件
function onKeyUp(e){
    if(e.key == "Enter") onSubmit()
}

// 添加键盘监听
onMounted(()=>{
    document.addEventListener("keyup",onKeyUp)
})
// 移除键盘监听
onBeforeUnmount(()=>{
    document.removeEventListener("keyup",onKeyUp)
})

</script>

<style scoped>
.login-container{
    @apply min-h-screen bg-indigo-500;
}
.login-container .left,.login-container .right{
    @apply flex items-center justify-center;
}
.login-container .right{
    @apply bg-light-50 flex-col;
}
.left>div>div{
    @apply font-bold text-5xl text-light-50 mb-4;
}
.right .title{
    @apply font-bold text-3xl text-gray-800;
}
.right>div{
    @apply flex items-center justify-center my-5 text-gray-300 space-x-2;
}
.right .line{
    @apply h-[1px] w-16 bg-gray-200;
}
</style>
